Sometimes Buffett's favorite buys are companies he already owns a stake in.
News & Analysis: Occidental Petroleum
The key difference between the winners and losers on this list isn't which sectors they operate in -- it's how they approach the pursuit of growth.
While the oil giant endured a rough 2019, its problems were primarily of its own making.
The greatest long-term investor of our generation did some shopping last year.
The "new NAFTA" trade deal looks poised to pass. Here's how it affects U.S. oil and gas companies.
Trading at a 10-year low, Occidental Petroleum may deserve a closer look.
We just got a fresh look at Berkshire's $235 billion stock portfolio, and here's what has changed.
They are also buying one that is getting sold off by Carl Icahn.
OXY earnings call for the period ending September 30, 2019.
The oil company’s acquisition of Anadarko Petroleum didn’t pay immediate dividends.